The best way to learn about bots is to build and experience them.
For my business bot I used OctaneAI.com, a chatbot creation platform that specifically allows you to create 'conversational articles' or 'convos'.
For my personal bot I used Chatfuel.com, a WYSIWYG chatbot creation platform with all the main Facebook Messenger capabilities and even some Artificial Intelligence functions.
Please click the links below to interact which each bot, or scan directly from Facebook Messenger:
Link to VIRVIE's bot
Link to Almar's bot